JPH02196816A - Production of integral skin foam - Google Patents

Production of integral skin foam

Info

Publication number
JPH02196816A
JPH02196816A JP1017053A JP1705389A JPH02196816A JP H02196816 A JPH02196816 A JP H02196816A JP 1017053 A JP1017053 A JP 1017053A JP 1705389 A JP1705389 A JP 1705389A JP H02196816 A JPH02196816 A JP H02196816A
Authority
JP
Japan
Prior art keywords
isocyanate
weight
mixture
integral skin
raw material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1017053A
Other languages
Japanese (ja)
Inventor
Hiromichi Hotta
浩通 堀田
Kazuo Mizumura
水村　一夫
Katsuji Kuribayashi
克次 栗林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
M D KASEI KK
Original Assignee
M D KASEI KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by M D KASEI KK filed Critical M D KASEI KK
Priority to JP1017053A priority Critical patent/JPH02196816A/en
Priority to AU49635/90A priority patent/AU4963590A/en
Priority to KR1019900702127A priority patent/KR910700302A/en
Priority to PCT/JP1990/000086 priority patent/WO1990008804A1/en
Priority to AR90316024A priority patent/AR244736A1/en
Publication of JPH02196816A publication Critical patent/JPH02196816A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0033—Foam properties having integral skins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0066—≥ 150kg/m3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To obtain the title foam useful for interior for automotive trim such as steering wheel or furniture, etc., because of excellent abrasion resistance by using a specific polydiphenylmethanediisocyanate mixture as an isocyanate raw material. CONSTITUTION:A mixture of polydiphenylmethane diisocyantes expressed by the formula (n is 0-4) wherein content of the diisocyanate expressed by the formula (n is 0) is 55-85wt.% is used as an isocyanate. Then a raw material consisting of the above-mentioned isocyanate and polyol is subjected to reaction and foaming in the presence of a CFC based foaming agent (e.g. trichlorofluoromethane) of 3-20wt.% based on the total raw material in a closed mold retained at 40-70 deg.C to provide the aimed foam having 0.3-0.9g/cm<3> average density.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、インテグラルスキンフオームの製造方法に係
り、特に特定のイソシアネート原料を用いることにより
耐摩耗性に優れたインテグラルスキンフオームを製造す
る方法に関する。インテグラルスキンフオームは、自動
車内装部品や家具などに広く使用されている。特に自動
車内装用として、ステアリングホイールやシフトノブに
は、フィーリング、高級感に優れることから今後より一
層使用されることが期待される。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for producing an integral skin foam, and in particular, a method for producing an integral skin foam with excellent wear resistance by using a specific isocyanate raw material. Regarding the method. Integral skin foam is widely used in automobile interior parts, furniture, etc. In particular, it is expected to be used even more in the future for automotive interiors, such as steering wheels and shift knobs, due to its excellent feel and luxurious feel.

〔従来の技術〕[Conventional technology]

インテグラルスキンフオームの製造において主に用いら
れる原料イソシアネートは、下記構造式で表わされる４
、４′−ジフェニルメタンジイソシアネートである。The raw material isocyanate mainly used in the production of integral skin foam is represented by the structural formula 4 below.
, 4'-diphenylmethane diisocyanate.

（ｎは、θ〜４の整数を表わす） 〔発明が解決しようとする課題〕 しかし上記従来法による場合、得られたインテグラルス
キンフオームは成形性には問題ないものの耐摩耗性に劣
るという問題があった。特にステアリングホイールおよ
びシフトノブは、自動車内装品の中で最も耐摩耗性が要
求される部品であるため、これら用途に対するインテグ
ラルスキンフオームとしては、耐摩耗性の一層の向上を
図る必要がある。(n represents an integer between θ and 4) [Problem to be solved by the invention] However, when using the above conventional method, the problem is that the obtained integral skin foam has no problem in moldability but is inferior in wear resistance. was there. In particular, steering wheels and shift knobs are the parts that require the most wear resistance among automotive interior parts, so it is necessary to further improve the wear resistance of integral skin forms for these applications.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の要旨は、主としてイソシアネート及びポリオー
ルからなる原料を全原料に対して３〜２０重量％の発泡
剤の存在下に４０〜７０℃に保持した密閉容器内に発泡
反応させて平均密度０．３〜０．９ｇ／ａｍ’のインテ
グラルスキンフオームを製造するに当り、イソシアネー
トとして下記一般式で表わされるポリジフェニルメタン
ジイソシアネートの混合物であって、ｎ＝Ｑで表わされ
る成分の含量が５５〜８５重量％であるものを使用する
ことを特徴とするインテグラルスキンフオームの製造方
法に存する。The gist of the present invention is to carry out a foaming reaction of raw materials mainly consisting of isocyanate and polyol in a closed container maintained at 40 to 70° C. in the presence of a blowing agent of 3 to 20% by weight based on the total raw materials to have an average density of 0. In producing an integral skin foam of 3 to 0.9 g/am', the isocyanate is a mixture of polydiphenylmethane diisocyanate represented by the following general formula, and the content of the component represented by n=Q is 55 to 85% by weight. % of integral skin foam.

（ｎ−θ〜４の整数で表す） 以下に本発明の詳細な説明する。(expressed as an integer from n-θ to 4) The present invention will be explained in detail below.

本発明にイソシアネート成分として使用するポリジフェ
ニルメタンジイソシアネートの混合物は蒸留分離によっ
て製出される、いわゆるピュアーＭＤＩおよびクルード
ＭＤＩの両者を用い、クルードＭＤＩにピュアーＭＤＩ
を適当量混合して得ることができる。そして本発明では
、下記一般式で示されるポリジフェニルメタンジイソシ
アネートの混合物であってｎ＝０で表わされる成分の含
量が５５〜８５重量％のものを原料として使用するが、
ｎ＝１．２．３．４の成分の組成は、これらの合計に対
して通常ｎ＝１の成分が３５〜６５重量％、ｎ＝２の成
分が５〜３０重量％、ｎ＝３の成分が１〜２０重量％、
ｎ＝４の成分力月Ｏ〜４０重量％程度である。The mixture of polydiphenylmethane diisocyanate used as an isocyanate component in the present invention uses both so-called pure MDI and crude MDI, which are produced by distillation separation.
It can be obtained by mixing appropriate amounts of. In the present invention, a mixture of polydiphenylmethane diisocyanates represented by the following general formula and containing 55 to 85% by weight of the component represented by n=0 is used as a raw material.
The composition of the components with n = 1, 2, 3, and 4 is usually 35 to 65% by weight of the component with n = 1, 5 to 30% by weight of the component with n = 2, and 5 to 30% by weight of the component with n = 3 based on the total of these. Ingredients are 1 to 20% by weight,
The component strength of n=4 is about 0 to 40% by weight.

（ｎ＝０〜４の整数を表わす） ポリジフェニルメタンジイソシアネート混合物中のｎ＝
Ｑの成分含量が前記特定範囲の場合に耐摩耗性の向上し
たインテグラルスキンフオームが得られるものであり、
ｎ＝Ｑの成分が５５重量％未満では、スキン層が軟らか
くなく、耐摩耗性が低下する。逆に８５重量％を越える
とスキン層が硬くなり同様に耐摩耗性は低下する。(n = represents an integer of 0 to 4) n = in the polydiphenylmethane diisocyanate mixture
An integral skin foam with improved wear resistance can be obtained when the content of the component Q is within the specified range,
If the component where n=Q is less than 55% by weight, the skin layer will not be soft and the abrasion resistance will decrease. On the other hand, if it exceeds 85% by weight, the skin layer becomes hard and the wear resistance similarly decreases.

本発明に使用するポリオールは、水、エチレングリコー
ル、プロピレングリコール、グリセリン、トリメチロー
ルプロパン、ペンタエリストール等を開始剤としてこれ
にエチレンオキシド、プロピレンオキシドを付加して得
られたポリエーテルポリオールおよびポリエーテルポリ
オールにスチレン、アクリロニトリルをグラフト重合し
たポリマーポリオールも使用できる。通常これらのポリ
オールの分子量は、３，０００〜ｓ、ｏｏｏの範囲のも
のを用いる。The polyols used in the present invention are polyether polyols and polyether polyols obtained by adding ethylene oxide and propylene oxide to water, ethylene glycol, propylene glycol, glycerin, trimethylolpropane, pentaerythol, etc. as an initiator. Polymer polyols obtained by graft polymerizing styrene and acrylonitrile can also be used. Usually, the molecular weight of these polyols used is in the range of 3,000 to s.ooo.

またＮ　Ｇ　Ｏｌｏ　Ｈの当量比としては０．９５〜１
゜１程度から選ばれる。In addition, the equivalent ratio of N G Olo H is 0.95 to 1
Selected from around ゜1.

本発明に用いるフレオン系発泡剤としては、トリクロロ
モノフルオロメタン、モノクロロジフルオロメタン、ジ
クロロジフルオロメタン等の揮発性液体が用いられ、こ
れは単独あるいは２種以上の混合物としても使用できる
。使用量としては、全原料に対し３〜２０重量％の範囲
で用いる。３重量％未満においては発泡圧が上らずスキ
ン層が出来にくい、また２０重量％を越えるとセル強度
に対し発泡圧が上廻りスキン層が形成される以前に連通
が生じスキン層ができにくく耐摩耗性は低下する。As the Freon blowing agent used in the present invention, volatile liquids such as trichloromonofluoromethane, monochlorodifluoromethane, and dichlorodifluoromethane are used, and these can be used alone or as a mixture of two or more types. The amount used is in the range of 3 to 20% by weight based on the total raw materials. If it is less than 3% by weight, the foaming pressure will not increase and it will be difficult to form a skin layer, and if it exceeds 20% by weight, the foaming pressure will exceed the cell strength and communication will occur before the skin layer is formed, making it difficult to form a skin layer. Abrasion resistance decreases.

触媒としては通常用いられるもので良く、アミン系およ
びスズ系触媒を単独あるいはそれらの混合系の形で用い
られる。アミン系触媒としては、トリエチレンジアミン
、Ｎ−メチルモルホリン、テトラメチルエチレンジアミ
ン等が挙げられ、スズ系触媒としてはスタナスオクトエ
ート、スタナスラウレート、ジブチルスズジラウレート
等が挙げられ、使用量としてはポリオールに対し０．Ｏ
１〜２．０重量％用いる。As the catalyst, any commonly used catalyst may be used, and amine-based and tin-based catalysts may be used alone or in the form of a mixture thereof. Examples of amine-based catalysts include triethylene diamine, N-methylmorpholine, and tetramethylethylenediamine, and examples of tin-based catalysts include stannath octoate, stannath laurate, and dibutyltin dilaurate. Against 0. O
1 to 2.0% by weight is used.

架橋剤としては、エチレングリコール、ジエチレングリ
コール、ｌ、４−ブタンジオール、１゜２−ブタンジオ
ール等が挙げられ使用量としてはポリオールに対し３〜
２０重量％用いる。その他シリコーン整泡剤、トナー老
防剤等も使用できる。Examples of the crosslinking agent include ethylene glycol, diethylene glycol, 1,4-butanediol, 1゜2-butanediol, etc., and the amount used is 3 to 3% of the polyol.
Use 20% by weight. Other silicone foam stabilizers, toner antiaging agents, etc. can also be used.

本発明に従いインテグラルスキンフオームを製造する際
には密閉モールドが使用される。開放モールドではモー
ルド内において発泡圧が上らずスキン層が形成しにくい
。A closed mold is used in manufacturing the integral skin foam according to the present invention. In an open mold, the foaming pressure does not increase within the mold, making it difficult to form a skin layer.

モールドの材質としては鉄、アルミニウム等の熱伝導率
の高いものがよい、熱伝導率の低い樹脂製モールドを用
いた場合は、モールド表面のウレタン温度が下らずスキ
ン層が形成しにくく耐摩耗性は低下する。The mold material should be one with high thermal conductivity such as iron or aluminum. If a resin mold with low thermal conductivity is used, the urethane temperature on the mold surface will not drop and a skin layer will not form easily, making it resistant to wear. sex decreases.

モールド温度としては、４０〜７０℃の範囲から選択す
る必要がある。モールド温度が４０℃を下層ると硬くな
りすぎ、フィーリングの低下をまねく、またモールド温
度が７０℃を上履る場合は、反応速度が速くなり流れ性
の低下をきたすと同時に、スキン層はできにくくなる。The mold temperature needs to be selected from the range of 40 to 70°C. If the mold temperature is below 40°C, the skin layer will become too hard, leading to a decrease in feel, and if the mold temperature is above 70°C, the reaction rate will increase, resulting in a decrease in flowability, and at the same time, the skin layer will become too hard. It becomes difficult to do.

インテグラルスキンフオームの全密度は、０．３〜０．
９　ｇ　／Ｃａ１３の範囲となるように上記発泡成形条
件を調節する必要がある。全密度が０．３ｇ／ｃｍ３未
満では、スキン層が形成されに＜＜、また０、９ｇ　／
　ｃｓ２を越えるとスキン層とコア層の差が不明瞭とな
りインテグラルスキンフオームとはいい難いものとなる
。The total density of the integral skin form is 0.3-0.
It is necessary to adjust the above-mentioned foam molding conditions so that it falls within the range of 9 g/Ca13. If the total density is less than 0.3 g/cm3, a skin layer will not be formed.
If it exceeds cs2, the difference between the skin layer and the core layer becomes unclear and it is difficult to call it an integral skin form.

本発明の方法により製造されたインテグラルスキンフオ
ームは、耐摩耗性に優れることから家具および自動車内
装品特にステアリングホイール、シフトノブ等の耐摩耗
性の要求される部品には最適である。The integral skin foam produced by the method of the present invention has excellent wear resistance and is therefore ideal for furniture and automobile interior parts, particularly parts that require wear resistance such as steering wheels and shift knobs.

〔実施例〕〔Example〕

以下に実施例及び比較例を挙げて本発明を具体的に説明
するが、本発明はその要旨を超えない限り、以下の実施
例に限定されるものではない。The present invention will be specifically described below with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.

実施例１ イソシアネートとしては、下記一般式で表わされるポリ
ジフェニルメタンジイソシアネートの混合物であってｎ
＝０で表わされる成分の含量が５５重量％、それ以外が
ｎ５＝ｌ〜４のもの、（ｎ＝０〜４の整数を表わす） ポリオールとして分子量６．０００の３官能ポリ工−テ
ルポリオール１００重量％、架橋剤として１．４−ブタ
ンジオール１０重量％、発泡剤としてフレオン−１１１
０重量％、触媒としてトリエチレンジアミン０．６重量
％、ジブチルスズジラウレート０．０１重量％、及びシ
リコーン整泡剤０．５重量％の混合物をイソシアネート
インデックス１．０５で高圧発泡機を用い、サイズが２
００×８００Ｘ５ｎのＡｌ製密閉モールド（モールド温
度５０℃±５℃）に全密度０．７ｇ／ａｍ３を目標に注
入し、インテグラルスキンフオームを１遺した。Example 1 The isocyanate is a mixture of polydiphenylmethane diisocyanates represented by the following general formula, where n
The content of the component represented by = 0 is 55% by weight, the rest is n5 = 1 to 4, (n = an integer of 0 to 4) Trifunctional polyether polyol 100 with a molecular weight of 6.000 as a polyol % by weight, 10% by weight of 1,4-butanediol as crosslinking agent, Freon-111 as blowing agent
A mixture of 0% by weight, 0.6% by weight of triethylenediamine as a catalyst, 0.01% by weight of dibutyltin dilaurate, and 0.5% by weight of a silicone foam stabilizer was prepared using a high-pressure foamer with an isocyanate index of 1.05 and a size of 2.
It was injected into a 00 x 800 x 5n aluminum sealed mold (mold temperature 50°C ± 5°C) with a total density of 0.7 g/am3, leaving one integral skin form.

成形後２３℃で２４時間放置後テーパー式摩耗試験機で
摩耗輪Ｈ−１０、荷重５００ｇを用い、ｓ、ｏｏｏ回転
における摩耗量で評価した。結果を表−１に示す。After being left at 23° C. for 24 hours after molding, it was evaluated by wear amount at s and ooo rotations using a taper type abrasion tester using an abrasion wheel H-10 and a load of 500 g. The results are shown in Table-1.

実施例２ イソシアネートとして、ポリジフェニルメタンジイソシ
アネートの混合物で、前記一般式中、ｎ＝０で表わされ
る成分の含量が７０重量％のものと、実施例１と同一の
ポリオール成分混合物で、実施例１と同じ成形条件下成
形し、ｓ、ｏｏｏ回転における摩耗量で評価した。Example 2 The isocyanate was a mixture of polydiphenylmethane diisocyanate in which the content of the component represented by n=0 in the general formula was 70% by weight, and the same polyol component mixture as in Example 1. It was molded under the same molding conditions and evaluated by the amount of wear in s and ooo rotations.

結果を表−１に示す。The results are shown in Table-1.

比較例１ イソシアネートとして、ポリジフェニルメタンジイソシ
アネートの混合物で前記一般式中、ｎ＝０で表わされる
成分の含量９０重量％のものを実施例１と同一のポリオ
ール成分の混合物で、実施例１と同じ成形条件下成形し
５．０００回転における摩耗量で評価した。Comparative Example 1 As the isocyanate, a mixture of polydiphenylmethane diisocyanate containing 90% by weight of the component represented by n=0 in the above general formula was used as a mixture of the same polyol components as in Example 1, and molded in the same manner as in Example 1. It was molded under the following conditions and evaluated by the amount of wear at 5,000 revolutions.

結果を表−１に示す。The results are shown in Table-1.

表 〔発明の効果〕 以上詳述した通り、本発明で製造したインテグラルスキ
ンフオームは耐摩耗性に優れるため特にステアリングホ
イール等の耐摩耗性を大幅に向上用きる。Table [Effects of the Invention] As detailed above, the integral skin foam produced according to the present invention has excellent abrasion resistance, so it can be used to significantly improve the abrasion resistance of steering wheels and the like in particular.

手続ネ甫正書印発） 平成１年り月／女日 ｌ　事件の表示 平成１年特許願第１７０５３号 ２　発明の名称 インテグラルスキンフオームの製造方法３　補正をする
者 出願人　　エム・デイ−化成株式会社 ４代理人〒１００ 東京都千代田区丸の内二丁目５番２号 三菱化成株式会社内 出願人　　エム・デイ−化成株式会社1999/1999 Patent Application No. 17053 2 Title of Invention Process for Manufacturing Integral Skin Foam 3 Person Making Amendment Applicant M.D. Kasei Co., Ltd. 4 Agent Address: 2-5-2 Marunouchi, Chiyoda-ku, Tokyo 100 Mitsubishi Kasei Corporation Applicant: MD-Kasei Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] （１）主としてイソシアネートおよびポリオールからな
る原料を全原料に対して３〜２０重量％のフレオン系発
泡剤の存在下に４０〜７０℃に保持した密閉モールド内
にて発泡反応させて平均密度０．３〜０．９ｇ／ｃｍ＾
３のインテグラルスキンフォームを製造するに当り、イ
ソシアネートとして、下記一般式で表わされるポリジフ
ェニルメタンジイソシアネートの混合物であって、ｎ＝
０で表わされる成分の含量が５５〜８５重量％であるも
のを使用することを特徴とするインテグラルスキンフォ
ームの製造方法。 ▲数式、化学式、表等があります▼ （ｎは、０〜４の整数を表わす）(1) Raw materials mainly consisting of isocyanate and polyol are subjected to a foaming reaction in a closed mold maintained at 40 to 70°C in the presence of a Freon foaming agent of 3 to 20% by weight based on the total raw material to have an average density of 0. 3~0.9g/cm^
In producing the integral skin foam of No. 3, the isocyanate is a mixture of polydiphenylmethane diisocyanates represented by the following general formula, where n=
A method for producing an integral skin foam, characterized in that the content of the component represented by 0 is 55 to 85% by weight. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (n represents an integer from 0 to 4)
JP1017053A 1989-01-26 1989-01-26 Production of integral skin foam Pending JPH02196816A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1017053A JPH02196816A (en) 1989-01-26 1989-01-26 Production of integral skin foam
AU49635/90A AU4963590A (en) 1989-01-26 1990-01-25 Process for preparing integral skin foam
KR1019900702127A KR910700302A (en) 1989-01-26 1990-01-25 Method for producing skin layer foam
PCT/JP1990/000086 WO1990008804A1 (en) 1989-01-26 1990-01-25 Process for preparing integral skin foam
AR90316024A AR244736A1 (en) 1989-01-26 1990-01-26 Method for manufacturing integral foam with a surface layer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1017053A JPH02196816A (en) 1989-01-26 1989-01-26 Production of integral skin foam

Publications (1)

Publication Number Publication Date
JPH02196816A true JPH02196816A (en) 1990-08-03

Family

ID=11933251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1017053A Pending JPH02196816A (en) 1989-01-26 1989-01-26 Production of integral skin foam

Country Status (5)

Country Link
JP (1) JPH02196816A (en)
KR (1) KR910700302A (en)
AR (1) AR244736A1 (en)
AU (1) AU4963590A (en)
WO (1) WO1990008804A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107365409A (en) * 2016-05-12 2017-11-21 上海飞利环球汽车零部件有限公司 A kind of engine bonnet and preparation method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES347738A1 (en) * 1966-12-27 1969-03-01 Upjohn Co Cellular Polyurethanes
US3836487A (en) * 1968-09-23 1974-09-17 Goodyear Tire & Rubber High impact rigid self-skinned polyurethane foam and method
GB1324501A (en) * 1969-07-31 1973-07-25 Ici Ltd Moulding process for polyurethane rigid foam
GB1326901A (en) * 1969-11-21 1973-08-15 Ici Ltd Expanded polyurethanes
US4465639A (en) * 1983-01-26 1984-08-14 The Upjohn Company Process for polyisocyanates
ZA883499B (en) * 1987-05-26 1988-11-28
US4994502A (en) * 1987-07-01 1991-02-19 Basf Corporation Process for the preparation of integral skin polyurethane steering wheels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107365409A (en) * 2016-05-12 2017-11-21 上海飞利环球汽车零部件有限公司 A kind of engine bonnet and preparation method thereof

Also Published As

Publication number Publication date
AU4963590A (en) 1990-08-24
WO1990008804A1 (en) 1990-08-09
KR910700302A (en) 1991-03-14
AR244736A1 (en) 1993-11-30

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